linux-kernel - [PATCH 10/12] dt-bindings: drm/bridge: Document Cadence MHDP bridge bindings

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Message-ID: <1530612152-27555-11-git-send-email-dkos@cadence.com>
Date:   Tue, 3 Jul 2018 11:02:21 +0100
From:   Damian Kos <dkos@...ence.com>
To:     David Airlie <airlied@...ux.ie>, Rob Herring <robh+dt@...nel.org>,
        "Mark Rutland" <mark.rutland@....com>,
        Gustavo Padovan <gustavo@...ovan.org>,
        Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
        Sean Paul <seanpaul@...omium.org>,
        Sandy Huang <hjc@...k-chips.com>,
        Heiko Stübner <heiko@...ech.de>,
        Damian Kos <dkos@...ence.com>,
        <dri-devel@...ts.freedesktop.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-rockchip@...ts.infradead.org>
CC:     <ltyrala@...ence.com>, <pgaj@...ence.com>, <stelford@...ence.com>
Subject: [PATCH 10/12] dt-bindings: drm/bridge: Document Cadence MHDP bridge bindings

Document the bindings used for the Cadence MHDP DPI/DP bridge.

Signed-off-by: Damian Kos <dkos@...ence.com>
---
 .../bindings/display/bridge/cdns,mhdp.txt          |   39 ++++++++++++++++++++
 1 files changed, 39 insertions(+), 0 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/display/bridge/cdns,mhdp.txt

diff --git a/Documentation/devicetree/bindings/display/bridge/cdns,mhdp.txt b/Documentation/devicetree/bindings/display/bridge/cdns,mhdp.txt
new file mode 100644
index 0000000..d872e26
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/bridge/cdns,mhdp.txt
@@ -0,0 +1,39 @@
+Cadence MHDP bridge
+==========================
+
+The Cadence MHDP bridge is a DPI to DP bridge.
+
+Required properties:
+ - compatible: should be "cdns,mhdp",
+ - reg: physical base address and length of the controller's registers,
+ - clocks: DP bridge clock, it's used by the IP to know how to translate
+	   a number of clock cycles into a time (which is used to comply
+	   with DP standard timings and delays),
+ - clock-names: must be "clk",
+
+Required subnodes:
+ - ports: Ports as described in Documentation/devictree/bindings/graph.txt
+   Currently contains a single input port at address 0 representing the DPI
+   input.
+   Port 0 should be connected to a DPI encoder output.
+
+Example:
+
+	mhdp: mhdp@...0fb000000 {
+		compatible = "cdns,mhdp";
+		reg = <0xf0 0xfb000000 0x0 0x1000000>;
+		clocks = <&mhdp_clock>;
+		clock-names = "clk";
+
+		ports {
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			port@0 {
+				reg = <0>;
+				mhdp0_dpi_input: endpoint {
+					remote-endpoint = <&xxx_dpi_output>;
+				};
+			};
+		};
+	};
-- 
1.7.1